Sodium Sulfite → Disodium

HRID 267395Notes

Reaction equation

HRID 267395 reaction equation
[S:1]([O-:4])([O-:3])=[O:2].[Na+:5].[Na+:6].Cl[CH:8]([C:12]1[CH:17]=[CH:16][C:15]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=2[Cl:24])=[CH:14][CH:13]=1)[C:9]([OH:11])=[O:10].[Na]>C(O)C>[S:1]([CH:8]([C:12]1[CH:17]=[CH:16][C:15]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=2[Cl:24])=[CH:14][CH:13]=1)[C:9]([OH:11])=[O:10])([OH:4])(=[O:3])=[O:2].[Na:5][Na:6]

Participants

6

Reactant 3

HCID 24437Sodium SulfiteHCID 5360545SodiumHCID 21523009HCID 21523009, compound

Product 2

HCID 141233DisodiumHCID 21556240HCID 21556240, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 250 ml. of anhydrous ethanol and 0.12 moles of sodium sulfite is added 29 g. (0.1 moles) of α, 2'-dichloro-4-biphenylylacetic acid, sodium salt. The reaction mixture is stirred for 15 hours, filtered and the residue worked with ethanol. The filtrate is evaporated to dryness to obtain α-sulfo-2'-chloro-4-biphenylylacetic acid, disodium salt.

Workup

  1. filtrationfiltered
  2. customThe filtrate is evaporated to dryness

Sources & evidence

ORD record
ord-c8d9037491184ae2807a626161ec1720
Source dataset
uspto-grants-1976_03
Patent number
US03941821

Reaction notes

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